当我为http链接定义文件名时发生错误，我想做网页抓取。
WARNING: Apparent symbolic reference F not resolved.
WARNING: Apparent symbolic reference E not resolved.
2016 filename in url
2016! 'http://finance.yahoo.com:80/d/quotes.txt?s=YHOO+IBM+HPQ&f=sl1d1t1c1ohgv&e=.txt';
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